131135553 has 6 divisors (see below), whose sum is σ = 189418034. Its totient is φ = 87423696.

The previous prime is 131135551. The next prime is 131135567. The reversal of 131135553 is 355531131.

It can be written as a sum of positive squares in only one way, i.e., 92794689 + 38340864 = 9633^2 + 6192^2 .

It is not a de Polignac number, because 131135553 - 2¹ = 131135551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131135551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7285300 + ... + 7285317.

Almost surely, 2^131135553 is an apocalyptic number.

It is an amenable number.

131135553 is a deficient number, since it is larger than the sum of its proper divisors (58282481).

131135553 is a wasteful number, since it uses less digits than its factorization.

131135553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14570623 (or 14570620 counting only the distinct ones).

The product of its digits is 3375, while the sum is 27.

The square root of 131135553 is about 11451.4432714833. The cubic root of 131135553 is about 508.0504230541.

Adding to 131135553 its reverse (355531131), we get a palindrome (486666684).

It can be divided in two parts, 1311 and 35553, that added together give a square (36864 = 192²).

The spelling of 131135553 in words is "one hundred thirty-one million, one hundred thirty-five thousand, five hundred fifty-three".